<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>吾爱直播分享平台</title>
    <style>
        *{
            box-sizing: border-box;
        }
        html,body{
            margin: 0;
            padding: 0;
            width: 100%;
            height: 100%;
        }
        main{
            width: 100%;
            height: 100%;                            
            background: url('img/平台背景图层1@3x.png');
            padding-top: 141px;
        }
        div{
            margin:  0 auto;
        }
        .div1 {
            background: url("img/矢量智能对象拷贝@2x.png");
            width: 3rem;
            height: 3.9rem;
            background-size: 100%,100%;
        }
        .div2 {
            background: url("img/安卓下载@2x.png");
            width: 6rem;
            height: 0.9rem;
            background-size: 100%,100%;
            margin-top: 120px;
        }
        .div3 {
            background: url("img/IOS下载拷贝@2x.png");
            width: 6rem;
            height: 0.9rem;
            background-size: 100%,100%;
            margin-top: 32px;
            
        }
        @media all and (max-width: 374px) {
             html,body{
                font-size: 45px;
            }
        }
        @media all and (min-width: 375px) {
             html,body{
                font-size: 50px;
            }
        }
        @media all and (min-width: 775px) {
             html,body{
                font-size: 103px;
            }
            main {
                height: 1200px;
            }
        }
    </style>
</head>
<body>
    <main>
        <div class="div1"></div>
        <div class="div2"></div>
        <div class="div3"></div>
    </main>
</body>
</html>